Pre-cooling rate of low-temperature pipelines
Thread Content
Is there a specified rate for the pre-cooling rate of LNG cryogenic pipelines based on the material used? Is it the ** standard? How to do direct pre-cooling using the liquid phase?
There must be a cooling rate; here, in the initial stage, the temperature rises by 15 degrees per hour until it reaches 90 degrees, after which it remains constant for one hour, and then it drops by 30 degrees per hour as part of the pre-cooling process
I don’t know; here we use gas-phase cooling
Generally, high pre-cooling rates are required for tanks and cold boxes